DTMF Shield
- MT8870 Decoder IC.
- 4 Output digital pins.
- Operates on 5V
- Includes MT8870 DTMF Receiver IC
- Receives and Converts Standard DTMF Codes
- Remotely Switch Devices from Anywhere Using the Phone
- Easily Connects to Most Microcontrollers or Roboduino Board
- Low Power Consumption
- 5 On-Board LED's For Data Received Indication
- Standard Header Connections for Control System Connection
- Audio socket for application
- Speaker connector for audio sound checking.
- Microphone connector for over the air remote control system( note, due to environmental noise, without any filtering system this method is not recommended)
- Dimension: 37x37x9mm